The Silver Guardian

银之守墓人

Suigin Riku is a poor scholarship student at the elite Shinryou Private Academy who pours himself into the online game Dungeon Century, where he plays alongside a top-ranked partner. That partner turns out to be Rei Riku, the wealthy, popular daughter of a game developer. When Rei is suddenly kidnapped, Suigin is pulled into a tomb-raiding game called Grave Buster, where he must fight as a guardian through its dungeons to reach her. The story draws on Chinese mythology, including the creator god Pangu.